Natural Transmission of Avian-Lymphomatosis

Abstract A KEY to the control of lymphomatosis may be present in studies which involve natural transmission of the disease. Doyle (1927) was one of the first investigators to suggest that this disease was transmitted by way of the egg. Later numerous investigators, Warrack and Dalling (1932), Biely et at. (1932), Seager (1933), Blakemore and Glover (1935), Gibbs (1936), Tower (1937), McClary and Upp (1939), and Lee and Wilcke (1941), made suggestions and presented evidence which incriminated both the egg and infected birds as carriers of some form of lymphomatosis. Further evidence by Waters and Prickett (1944) has strengthened the conclusion that the egg and the infected bird serve as a means of transmission of the disease. The object of the present study, from data accumulated over a period of five years, is to add further factual evidence that the disease can be transmitted under natural conditions both through the egg . . .